Home / 3,178.99-4,387.40-2,000.04

Finding the Fourth Proportional to 3,178.99, 4,387.40 and 2,000.04

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Solution

The fourth proportional to 3,178.99, 4,387.40 and 2,000.04 is: 2,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.99 : 4,387.40 = 2,000.04 : x
  2. Step 2: Convert to fraction form
    3,178.99/4,387.40 = 2,000.04/x
  3. Step 3: Cross multiply
    3,178.99x = 4,387.40 × 2,000.04
  4. Step 4: Simplify right side
    3,178.99x = 8,774,975.50
  5. Step 5: Solve for x
    x = 8,774,975.50/3,178.99
  6. Step 6: Final answer
    x = 2,760.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.